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java.lang.Thread at weblogic.servlet.internal.ResponseHeaders.setDateHeader(ResponseHeaders.jav a
java.lang.ClassCastException: java.lang.Threadatweblogic.servlet.internal.ResponseHeaders.setDateHeader(ResponseHeaders.java at weblogic.servlet.internal.ServletResponseImpl.setDateHeader(ServletResponseImpl.java:449) at weblogic.servlet.internal.ServletResponseImpl.writeHeaders(ServletResponseImpl.java:637) at weblogic.servlet.internal.ServletOutputStreamImpl.flush(ServletOutputStreamImpl.java:124) at weblogic.servlet.internal.WLOutputStreamWriter.flush(WLOutputStreamWriter.java:124) at java.io.PrintWriter.flush(PrintWriter.java:120) at org.apache.xalan.serialize.SerializerToXML.flushWriter(SerializerToXML.java1431) at org.apache.xalan.serialize.SerializerToXML.endDocument(SerializerToXML.java629) at org.apache.xalan.transformer.ResultTreeHandler.endDocument(ResultTreeHandler..java:180) at org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1194) at org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:2894) at java.lang.Thread.run(Thread.java:484)